US Patent 9839424 Electromechanical surgical assembly

An electromechanical surgical assembly includes a surgical device, an adapter, and a filter. The surgical device includes a connecting portion having a distal facing recess including an electrical plug. The adapter includes a proximal facing cap configured to mate with the recess of the surgical device, the proximal facing cap including an electronic assembly including a plurality of electrical contact pins configured for electrical connection with the electrical plug. The filter is removably positioned within the recess of the surgical device. The plurality of electrical contact pins extend through the filter when the adapter is connected to the surgical device.